The Kiama Blowhole is the largest natural blowhole in the world, and when the conditions are right it puts on a show that has drawn crowds to the New South Wales South Coast for generations. On a strong swell, seawater rockets up to 25 metres into the air (and has been recorded above 30), accompanied by the deep whoosh that gave the town its name. This guide covers when to see it at its best, how it works, how to get there, and what else is worth your time once you’re standing on Blowhole Point.
Best time to see the Kiama Blowhole erupt
The blowhole is entirely at the mercy of the ocean, so timing is everything. It performs best when a strong south-easterly swell meets a high tide. Stormy, blustery days, the kind most people stay home for, are when the eruptions are most explosive. Calm, flat seas mean little more than a gurgle, so it pays to check conditions before you drive down.
A quick way to read the day: look at the swell direction and tide forecast for Kiama. South-east swell over one metre plus a rising or high tide is your green light. If the main blowhole is quiet, the Little Blowhole a couple of kilometres south often keeps going when the big one rests (more on that below).
How the Kiama Blowhole works
The blowhole was carved into a basalt headland laid down by volcanic activity around 260 million years ago. Waves surge into a natural sea cave beneath the rock, compressing the air and water until it forces its way up through a 2.5-metre gap and erupts skyward. The name “Kiama” comes from the local Dharawal language and has long been translated as “where the sea makes a noise”, which is exactly what you hear before you see it.
Getting there, parking and access
The blowhole sits at Blowhole Point, right beside the historic Kiama Lighthouse, a short walk from the centre of Kiama and roughly 90 minutes south of Sydney. There’s parking at the point, sealed pathways, and a viewing platform with accessible access, so you can take it in without much of a walk. Entry is free, and the surrounding reserve, rock pool and cafes make it easy to turn a quick stop into a half-day.
Don’t miss the Little Blowhole
About two kilometres south, off Tingira Crescent, the lesser-known Little Blowhole is narrower and often more consistent than its famous neighbour. Locals will tell you it can be the better show on the right day, and it’s far quieter. If you’ve made the trip and the main blowhole is having an off day, it’s well worth the short detour.
What else to see around Kiama
Blowhole Point is the anchor for a cluster of attractions you can string together on foot or with a short drive:
- Kiama Lighthouse: the 1887 landmark standing right beside the blowhole, with sweeping coast views.
- Kiama Coast Walk: a 20km cliff-top route taking in the headlands, beaches and rock platforms; you can walk just the Blowhole-to-Little-Blowhole stretch.
- Surf beaches and the rock pool: Surf Beach and the ocean pool are minutes away.
- Town centre dining: Kiama’s cafes, pubs and the harbour are a short stroll from the point.
Where to stay near the Kiama Blowhole
The best way to catch the blowhole at its peak is to be close enough to go when the swell turns on, not to drive two hours and hope. Ridgewaters Kiama offers luxury beachfront apartments a short walk from Blowhole Point, so you can step out the door and check the conditions whenever they look right. The self-contained stays put you within walking distance of the blowhole, the lighthouse, the coast walk and the town centre. See our Kiama accommodation and book your stay.
Kiama Blowhole FAQs
What’s the best time to see the Kiama Blowhole?
When a south-easterly swell meets a high tide. Stormy days with big seas produce the biggest eruptions; calm flat days produce very little.
Is the Kiama Blowhole free to visit?
Yes. There’s no entry fee, and the viewing platform and pathways are accessible.
How far is the Kiama Blowhole from Sydney?
Around 90 minutes’ drive south, on the NSW South Coast.
What causes the Kiama Blowhole to erupt?
Waves surge into a sea cave in the volcanic basalt headland and compress air and water up through a 2.5-metre gap, firing seawater up to 25 metres into the air.
Is the Little Blowhole worth visiting?
Yes, especially if the main blowhole is quiet. It’s about 2km south off Tingira Crescent, narrower, more consistent and much less crowded.
